From: David Gibson <david@gibson.dropbear.id.au> To: brijesh.singh@amd.com, pair@us.ibm.com, dgilbert@redhat.com, pasic@linux.ibm.com, qemu-devel@nongnu.org Cc: cohuck@redhat.com, Richard Henderson <richard.henderson@linaro.org>, Marcelo Tosatti <mtosatti@redhat.com>, David Hildenbrand <david@redhat.com>, borntraeger@de.ibm.com, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Paolo Bonzini <pbonzini@redhat.com>, mst@redhat.com, jun.nakajima@intel.com, thuth@redhat.com, pragyansri.pathi@intel.com, kvm@vger.kernel.org, Eduardo Habkost <ehabkost@redhat.com>, qemu-s390x@nongnu.org, qemu-ppc@nongnu.org, frankja@linux.ibm.com, Greg Kurz <groug@kaod.org>, mdroth@linux.vnet.ibm.com, David Gibson <david@gibson.dropbear.id.au>, berrange@redhat.com, andi.kleen@intel.com Subject: [PATCH v7 11/13] spapr: PEF: prevent migration Date: Thu, 14 Jan 2021 10:58:09 +1100 [thread overview] Message-ID: <20210113235811.1909610-12-david@gibson.dropbear.id.au> (raw) In-Reply-To: <20210113235811.1909610-1-david@gibson.dropbear.id.au> We haven't yet implemented the fairly involved handshaking that will be needed to migrate PEF protected guests. For now, just use a migration blocker so we get a meaningful error if someone attempts this (this is the same approach used by AMD SEV). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> --- hw/ppc/pef.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/hw/ppc/pef.c b/hw/ppc/pef.c index 02b9b3b460..d7a49ef337 100644 --- a/hw/ppc/pef.c +++ b/hw/ppc/pef.c @@ -42,6 +42,8 @@ struct PefGuest { }; #ifdef CONFIG_KVM +static Error *pef_mig_blocker; + static int kvmppc_svm_init(Error **errp) { if (!kvm_check_extension(kvm_state, KVM_CAP_PPC_SECURE_GUEST)) { @@ -58,6 +60,11 @@ static int kvmppc_svm_init(Error **errp) } } + /* add migration blocker */ + error_setg(&pef_mig_blocker, "PEF: Migration is not implemented"); + /* NB: This can fail if --only-migratable is used */ + migrate_add_blocker(pef_mig_blocker, &error_fatal); + return 0; } -- 2.29.2
WARNING: multiple messages have this Message-ID (diff)
From: David Gibson <david@gibson.dropbear.id.au> To: brijesh.singh@amd.com, pair@us.ibm.com, dgilbert@redhat.com, pasic@linux.ibm.com, qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, thuth@redhat.com, Marcelo Tosatti <mtosatti@redhat.com>, berrange@redhat.com, jun.nakajima@intel.com, kvm@vger.kernel.org, David Hildenbrand <david@redhat.com>, cohuck@redhat.com, Richard Henderson <richard.henderson@linaro.org>, Greg Kurz <groug@kaod.org>, mdroth@linux.vnet.ibm.com, borntraeger@de.ibm.com, qemu-s390x@nongnu.org, frankja@linux.ibm.com, mst@redhat.com, pragyansri.pathi@intel.com, andi.kleen@intel.com, Paolo Bonzini <pbonzini@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, Eduardo Habkost <ehabkost@redhat.com> Subject: [PATCH v7 11/13] spapr: PEF: prevent migration Date: Thu, 14 Jan 2021 10:58:09 +1100 [thread overview] Message-ID: <20210113235811.1909610-12-david@gibson.dropbear.id.au> (raw) In-Reply-To: <20210113235811.1909610-1-david@gibson.dropbear.id.au> We haven't yet implemented the fairly involved handshaking that will be needed to migrate PEF protected guests. For now, just use a migration blocker so we get a meaningful error if someone attempts this (this is the same approach used by AMD SEV). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> --- hw/ppc/pef.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/hw/ppc/pef.c b/hw/ppc/pef.c index 02b9b3b460..d7a49ef337 100644 --- a/hw/ppc/pef.c +++ b/hw/ppc/pef.c @@ -42,6 +42,8 @@ struct PefGuest { }; #ifdef CONFIG_KVM +static Error *pef_mig_blocker; + static int kvmppc_svm_init(Error **errp) { if (!kvm_check_extension(kvm_state, KVM_CAP_PPC_SECURE_GUEST)) { @@ -58,6 +60,11 @@ static int kvmppc_svm_init(Error **errp) } } + /* add migration blocker */ + error_setg(&pef_mig_blocker, "PEF: Migration is not implemented"); + /* NB: This can fail if --only-migratable is used */ + migrate_add_blocker(pef_mig_blocker, &error_fatal); + return 0; } -- 2.29.2
next prev parent reply other threads:[~2021-01-14 1:53 UTC|newest] Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-13 23:57 [PATCH v7 00/13] Generalize memory encryption models David Gibson 2021-01-13 23:57 ` David Gibson 2021-01-13 23:57 ` [PATCH v7 01/13] qom: Allow optional sugar props David Gibson 2021-01-13 23:57 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 02/13] confidential guest support: Introduce new confidential guest support class David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 9:34 ` Daniel P. Berrangé 2021-01-14 9:34 ` Daniel P. Berrangé 2021-01-14 10:42 ` David Gibson 2021-01-14 10:42 ` David Gibson 2021-01-18 18:51 ` Dr. David Alan Gilbert 2021-01-18 18:51 ` Dr. David Alan Gilbert 2021-01-21 1:06 ` David Gibson 2021-01-21 1:06 ` David Gibson 2021-01-21 9:08 ` Dr. David Alan Gilbert 2021-01-21 9:08 ` Dr. David Alan Gilbert 2021-01-29 2:32 ` David Gibson 2021-01-29 2:32 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 03/13] sev: Remove false abstraction of flash encryption David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-15 12:54 ` Cornelia Huck 2021-01-15 12:54 ` Cornelia Huck 2021-01-18 2:59 ` David Gibson 2021-01-18 2:59 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 04/13] confidential guest support: Move side effect out of machine_set_memory_encryption() David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-15 12:56 ` Cornelia Huck 2021-01-15 12:56 ` Cornelia Huck 2021-01-13 23:58 ` [PATCH v7 05/13] confidential guest support: Rework the "memory-encryption" property David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-15 13:06 ` Cornelia Huck 2021-01-15 13:06 ` Cornelia Huck 2021-01-13 23:58 ` [PATCH v7 06/13] sev: Add Error ** to sev_kvm_init() David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 07/13] confidential guest support: Introduce cgs "ready" flag David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 8:55 ` Greg Kurz 2021-01-14 8:55 ` Greg Kurz 2021-01-15 13:12 ` Cornelia Huck 2021-01-15 13:12 ` Cornelia Huck 2021-01-18 19:47 ` Dr. David Alan Gilbert 2021-01-18 19:47 ` Dr. David Alan Gilbert 2021-01-19 8:16 ` Cornelia Huck 2021-01-19 8:16 ` Cornelia Huck 2021-02-02 1:41 ` David Gibson 2021-02-02 1:41 ` David Gibson 2021-01-29 6:30 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 08/13] confidential guest support: Move SEV initialization into arch specific code David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-15 13:24 ` Cornelia Huck 2021-01-15 13:24 ` Cornelia Huck 2021-01-18 3:03 ` David Gibson 2021-01-18 3:03 ` David Gibson 2021-01-18 8:03 ` Cornelia Huck 2021-01-18 8:03 ` Cornelia Huck 2021-01-29 3:12 ` David Gibson 2021-01-29 3:12 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 09/13] confidential guest support: Update documentation David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 10:07 ` Greg Kurz 2021-01-14 10:07 ` Greg Kurz 2021-01-15 15:36 ` Cornelia Huck 2021-01-15 15:36 ` Cornelia Huck 2021-01-29 2:36 ` David Gibson 2021-01-29 2:36 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 10/13] spapr: Add PEF based confidential guest support David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 10:39 ` Greg Kurz 2021-01-29 6:23 ` David Gibson 2021-01-15 15:41 ` Cornelia Huck 2021-01-15 15:41 ` Cornelia Huck 2021-01-29 2:43 ` David Gibson 2021-01-29 2:43 ` David Gibson 2021-01-13 23:58 ` David Gibson [this message] 2021-01-13 23:58 ` [PATCH v7 11/13] spapr: PEF: prevent migration David Gibson 2021-01-13 23:58 ` [PATCH v7 12/13] confidential guest support: Alter virtio default properties for protected guests David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-13 23:58 ` [PATCH v7 13/13] s390: Recognize confidential-guest-support option David Gibson 2021-01-13 23:58 ` David Gibson 2021-01-14 9:10 ` Christian Borntraeger 2021-01-14 9:10 ` Christian Borntraeger 2021-01-14 9:19 ` Christian Borntraeger 2021-01-14 9:19 ` Christian Borntraeger 2021-01-14 9:24 ` Christian Borntraeger 2021-01-14 9:24 ` Christian Borntraeger 2021-01-15 0:13 ` David Gibson 2021-01-15 0:13 ` David Gibson 2021-01-14 11:45 ` David Gibson 2021-01-14 11:45 ` David Gibson 2021-01-15 16:36 ` Cornelia Huck 2021-01-15 16:36 ` Cornelia Huck 2021-01-18 17:06 ` Christian Borntraeger 2021-01-18 17:06 ` Christian Borntraeger
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